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Table 2 Mean concentrations of ETEs in drinking water samples (unit: μg/L)

From: Dietary and drinking water intake of essential trace elements in a typical Kashin-Beck disease endemic area of Tibet, China

Survey locations Cu Fe Mn Mo Se Zn
Baida Township (n = 1) 0.189 0.370 0.041 1.252 0.354 0.665
Dalong Township (n = 5) 0.256 ± 0.100 0.897 ± 0.222 0.040 ± 0.025 1.693 ± 1.636 0.198 ± 0.138 0.919 ± 0.701
Exi Township (n = 7) 0.183 ± 0.172 0.706 ± 0.368 0.038 ± 0.017 0.088 ± 0.008 0.088 ± 0.067 0.614 ± 0.290
Kangsha Township (n = 14) 0.200 ± 0.176 0.514 ± 0.744 0.091 ± 0.107 0.175 ± 0.164 0.085 ± 0.077 0.468 ± 0.246
Najiu Township (n = 20) 0.128 ± 0.091 0.688 ± 0.647 0.034 ± 0.023 0.652 ± 0.628 0.035 ± 0.023 0.392 ± 0.196
Mali Township (n = 7) 0.206 ± 0.100 0.384 ± 0.206 0.054 ± 0.024 0.432 ± 0.354 0.303 ± 0.130 0.932 ± 0.961
Shuodu Township (n = 5) 2.672 ± 2.239 0.264 ± 0.139 1.370 ± 2.288 0.219 ± 0.286 0.074 ± 0.066 1.965 ± 2.135
Xinrong Township (n = 7) 0.198 ± 0.146 0.963 ± 0.825 0.075 ± 0.071 0.105 ± 0.004 0.336 ± 0.295 0.850 ± 0.431
Yuxi Township (n = 5) 0.141 ± 0.074 0.215 ± 0.088 0.058 ± 0.050 0.273 ± 0.070 0.308 ± 0.146 0.560 ± 0.501
Zhongyi Township (n = 6) 0.747 ± 0.279 1.070 ± 0.287 0.452 ± 0.591 0.083 ± 0.078 0.149 ± 0.207 2.114 ± 2.780
Zituo Township (n = 12) 0.270 ± 0.279 4.871 ± 8.230 0.075 ± 0.088 0.491 ± 0.658 0.066 ± 0.049 3.311 ± 4.777
Luolong County (n = 89) 0.278 ± 0.264 0.766 ± 0.312 0.411 ± 0.526 0.119 ± 0.223 0.155 ± 0.180 0.804 ± 1.112
GB 5749–2022 1000 300 100 70 10 1000